Abstract:Punching machine driven by linear motor can achieve “zero drive”, which has the advantages of simple structure,high control precision and low noise, so it is an important development direction of precision CNC punching machine. Through comparative analysis, the cylindrical linear motor was determined as a power source for punching machine, and the machines power system, buffering mechanism and other major components were designed. Based on this, stamping process was simulated by ADAMS software, and then blanking force simulation curve was obtained. Punching force is about 53 kN, which can meet the design requirements. The mold stiffness and bed constraint mode were analyzed using HyperMesh finite element analysis software. By solving computational analysis, mold maximum deformation was 1689×10-3 mm and this position was in the lower end face, bed minimum natural frequency was 1257 Hz. The results satisfy the requirements of the machine.